Cylinder-to-frame connection for locomotives.



Patented lune 5 I900.

s. r. nmcs, .ln. CYLINDER T0 FRAME IIQNNECTIONv FOR LOCOMOTIVES.

(Application filed Apr. 4, 1900.)

(No Model.)

' UNITED STATES PATENT OFFICE.

SAMUEL F. PRINCE, JR, OF READING, PENNSYLVANIA.

C YLl-NDER-TO-FRAME CONNECTION FOR LOCOMOTIVES.

SPECIFICATION forming part Of Letters Patent No. 650,908, dated June 1 00- Application filed April 4, 1900. Serial No 11,448. (No model.)

To all whom, it may concern.-

Be it known that I, SAMUEL F. PRINOE,-J r. a citizen of the United States of America, and a resident of Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Cylinder-to-Frame Connections for Locomotives, of which the following is a specification.

My invention relates particularly to locomotive constructions, and more specifically to the manner of connecting the engine-cylinders to the longitudinal fram e-bars thereof. This connection has heretofore been commonly made by means of tightly-fitting bolts passed through registering holes in the framebar and cylinder-casting, respectively. This,

however, involves a weakening of the frame and cylinder structures and the carrying of great strains by the bolts, which are apt to be broken or loosened thereby.

The main object of my invention is to retain the full strength of the frame and cylinder structures and at the same time provide a perfectly-rigid and conveniently-made connection of the same.

The invention is fully described in connection with the accompanying drawings and is particularly pointed out in the claims.

Figure 1 is a front elevation of a portion of a cylinder-castin g, showing the frame, side wedge,-and binder-plate in cross-section on the line 0050 of Fig. 2. Fig. 2 is a sectional plan view taken on the line y y of Fig. 1.

A represents the cylinder-casting of a locomotive, which comprises, as usual, a cylinder portion A and a lateral extension A provided with a bolting-flange ct for connection to the similar cylinder-casting on the opposite side and adapted also to be connected with the extended boiler shell, as usual, thoughthe latter connection is not shown, as it has no bearing on my invention.

Bis the main longitudinal frame-bar of the machine, of which only the portion to which the cylinder-casting is connected is shown. This frame-bar is of rectangular cross-section, as indicated in Fig. 1, adapted to fit in a longitudinal recess or opening of similar crosssection in the cylinder-casting, but formed with offsets or shoulders I) 1), adapted to overlap the cylinder-oasting at front and rear when the frame-bar is in contact with the latter.

into contact with the wall a, the frame fits outer side wall a of the frame-recess, so as to form pockets for end Wedges O O, as hereinafter described, between said offsets and the casting. This rectangular recess or opening in the casting for the reception of the frame is of greater width than the thicknessof the portion of the frame Btherein,

- so as to allow room for a side wedge D between the latter and the inner Wall of said opening or recess. The purpose of this side wedge is to crowd the frame B tightly against the outer wall a after the cylinder has been properly located fore and aft on the frame, while the end wedges O O serve when tightly forced into position between the frame offsets I) b and the front and rear faces of the cylinder, respectively, to positively prevent lengthwise movement of the latter upon the frame.

The taper of the wedges O C and D is prefaloly slight, so as to permit of readily securinga practically-rigid connection of the frame and cylinder when they are forced home. They may be held in set position in any preferred manner, the bolts 0 being adapted, as shown, to hold the end wedges in position, while a transverse bolt 6 may be used to secure the adjusted side wedge.

To enable the cylinder-casting to be easily placed on the frame as desired or removed therefrom, I preferably provide a bottom inlet-slot f to the rectangular recess or opening in the cylinder-casting of sufficient width to permit the passage of the frame 13 into the WVhen thus introduced and moved snugly between the bottom offset f and the top of the opening, and the side wedge D is similarly retained in place. Before driving the latter home I provide against any liability of spreading the casting at the slotf by binding the same together, as by means of a binder-plate g, which, as shown, is slipped endwise into engagement therewith and insures ample rigidity in the completed structure.

It will be noticed that in my-improved connection uniting-bolts are entirely dispensed with, and the full strength of both the frame and casting is retained, while at the same time an accurate, safe, and rigid connection is conveniently'and easily secured.

What I claim is- 1. In a locomotive or the like the combination with the f rame-bar, of acylinder-casting formed with a laterally-enlarged opening or recess to receive said frame-bar, and a side wedge in said recess adapted to press the parts into rigid connection substantially as set forth.

2. In a locomotive or the like the combination with the frame-bar, of a cylinder-casting formed with a laterally-enlarged opening or recess for said f ranie-bar having a bottom inlet therefor, a side wedge or filling-piece in said pocket between one wallthereof and the frame-bar and removable means connecting the side walls of said bottom inlet substantially as set forth.

In a locomotive or the like the combination with the fran1e-bar, of a cylinder-casting formed with a laterally-enlarged opening or recess to receive said frame-bar, a side wedge in said pocket between one wall thereof and the frame-bar, and endwedges or keys between the front and rear cylinder-walls and offsets on the frame-bar, substantially as set forth.

4. In a locomotive or the like the combination with the frame-bar, of a cylinder-castin g formed with a laterally-enlarged opening or recess for said frame-bar having abottom inlet therefor, a side wedge or filling-piece in said pocket between one wall thereof and the frame-bar, end wedges or keys between the front and rear cylinder-walls and offsets on the frame-bar, and removable means for connecting the side walls of said bottom inlet to the frame bar recess, substantially as set forth.

Signed by me at Reading, Pennsylvania, this 2d day of April, 1900.

SAMUEL F. PRINCE, JR.

Witnesses:

W. G. STEWART, Wool) M. SCHWARTZ, Jr. 

